Shooters World SW4350 S070-05 Smokeless Gun Powder: Slow-Burning Extruded Powder for Long-Range & Magnum Rifle Cartridges

Shooters World SW4350 is an extruded rifle propellant and the slowest of the major 4350-family derivatives — ranked fastest to slowest: Hodgdon H4350, IMR 4350, Accurate 4350, SW4350. It’s sold in Europe under the Lovex brand as S070. Despite the name similarity, SW4350 is not the same propellant as H4350; its slower burn rate lets it reach 100% loading density in large-capacity magnum cases where other 4350 derivatives fall short, while it also performs well in moderate long-range cartridges like 6.5 Creedmoor.

Built for High Case-Capacity Cartridges

SW4350 has a narrow-diameter, short-cut extruded grain and a density of approximately 0.9 grams/cc, giving it good drop consistency through a volumetric powder measure for an extruded propellant. It contains a level of flash suppressant. Shooters World propellants have a long track record — the manufacturer traces its propellant production back to 1920, and many of its powders are sold throughout Europe under the Lovex brand.

Application Versatility

SW4350 has published and manufacturer-cited use across 6.5 Creedmoor, 6.5 PRC, 6mm GT, .308 Winchester, .300 Norma Magnum, 7mm Remington Magnum, .243 Winchester, .270 Winchester, 6.5×55 Swedish, 8mm Mauser, and .338 Lapua Magnum. If you’re loading standard-capacity cases and want a faster-burning option, Shooters World Match Rifle D073-06 is a purpose-built alternative.

Load Development

Always use published, manufacturer-tested load data when developing loads with SW4350. Start at the published minimum charge and work up in small increments, weigh every charge on a calibrated scale, and chronograph each string to track velocity consistency. Keep primer brand, bullet lot, and brass lot constant during development, watch for pressure signs, and document charge weight, seating depth, primer, and chronograph results so successful loads can be reproduced.

Quick Specs

• Type: Extruded smokeless rifle powder, slowest of the major 4350-family derivatives (H4350 < IMR 4350 < Accurate 4350 < SW4350 by burn speed), density ~0.9 g/cc, with flash suppressant
• Manufacturer: Shooters World (sold in Europe under the Lovex brand as S070)
• Best for: 6.5 Creedmoor, 6.5 PRC, 6mm GT, .308 Winchester, .300 Norma Magnum, 7mm Rem Mag, .243 Winchester, .270 Winchester, 6.5×55 Swedish, 8mm Mauser, .338 Lapua Magnum
• Container sizes: 1 Lb, 8 Lb

Safety Reminders

Before loading, review a few important guidelines. Never exceed the loads displayed in your reloading guide. Never mix two powders together, regardless of type, brand, or source. Never substitute smokeless powder for Black Powder or any Black Powder substitute. Store SW4350 in its original, sealed container in a cool, dry, well-ventilated place away from sunlight and heat sources.

Shooters World SW4350 S070-05 For Sale, In Stock

USReloadingPowder keeps Shooters World SW4350 S070-05 Smokeless Gun Powder in stock for long-range and magnum-class rifle reloaders. Browse the rest of our lineup on the Shooters World Powder category page.

FAQs

What cartridges is SW4350 best for? It has published and manufacturer-cited use across 6.5 Creedmoor, 6.5 PRC, 6mm GT, .308 Winchester, .300 Norma Magnum, 7mm Rem Mag, .243 Winchester, .270 Winchester, 6.5×55 Swedish, 8mm Mauser, and .338 Lapua Magnum.

How does its burn rate compare to other 4350 powders? It’s the slowest of the major 4350-family derivatives — ranked fastest to slowest: H4350, IMR 4350, Accurate 4350, SW4350.

Is SW4350 the same as H4350? No — despite the similar naming, SW4350 is a distinct propellant with its own burn characteristics, not a direct substitute for H4350 in existing load data.

How should I store it long-term? Keep it sealed in its original container, stored in a cool, dry, ventilated location away from heat and sunlight. Proper storage keeps powder stable for years.